X-Moto

25 runs in three rounds, games interleaved, arm order alternating. Two Neverball runs with it were interfered by the agent's own SSH checks and left out, so Neverball has 2 runs with it. Every run fullscreen at 1920x1080 and in gameplay at its 40 s screenshot.

• ps3-rt-audio put the audio thread on SCHED_RR 1 in every run with it: SDL's audio thread in dsda-doom, X-Moto and Neverball, and Extreme Tux Racer's unnamed audio thread.
• Audible dropouts a run (about 200 s), median, without and with it: dsda-doom 29 to 2 (audible time 0.8-1.2 s to 50-113 ms), Extreme Tux Racer 26 to 2 (0.65-0.92 s to 58-124 ms), Neverball 3 to 0, X-Moto 0 to 0 (logged underruns 78 to 11).
• Steady fps unchanged within 0.4%: dsda-doom 39.75 and 39.8, X-Moto 161.7 and 161.0, Neverball 82.73 and 82.72.
• 1% lows a little lower with it in the light games, ranges touching: X-Moto 113.4 to 109.4, Neverball 57.9 to 56.6, dsda-doom 20.6 to 19.0.
• Extreme Tux Racer's were higher with it: HUD 1% low 19.8 to 29.2, steady 56 to 59. The previous batch had no such gap (29.9 against 28.6).

• Same boot, two runs per arm interleaved, kernel .472, ps3rsx 0.443, set per run and put back.
• ClassiCube: steady 46.11 fps in both arms. 1% low 30.1 off, 29.7 on. CPU 80.3 against 86.3 s, within the 79.8-86.6 s the same setup showed across the boot.
• BananaBread: 39.15 fps off against 39.7 on (the unprofiled baseline spread is 39.06-40.3). Stalls 0.05 against 0.15 s, VRAM equal.
• X-Moto: 158.4 against 159.0 fps, 1% low 98.1 against 97.5.
• No gain resolved at two runs on three games; the switch stays off.
• In the ClassiCube and BananaBread profiles, the code the switch affects is 2-6% of the CPU, the most it could save.

• Same boot, kernel .433 with the idle fix and no kicker, interference detector on (3 runs disturbed by SSH logins left out).
• Prefetch against none, three runs each: no gain. BananaBread load 18.1-18.6 s against 15.2-18.8; OpenArena OpenGL 2 about 0.5 s faster; Luanti worse (load +1-4 s, two runs with 3 s hitches). Default turned off.
• Idle fix on and off, two runs each: gameplay stall time 0.4 and 0.4 s against 9.0 and 7.9 s, longest frame 0.22-0.38 s against 2.2-2.8 s. Clean.
• ClassiCube's alternative chunk drawing: 48.1 fps against 46.0 (+4.7%).
• X-Moto with its streaming draw path: 162.1 against 160.6 (+1%).
• Luanti with chunk size 3 renders a black void at 150 s: it is the part of lean that empties the world. Server unloading and active block range 2 render, but stall more (6.3 and 6.7 s against about 2.5).

• Same boot, one run each. BananaBread's demo is now first-person with the full data (gun and HUD visible): heavier than the earlier spectator runs, not comparable.
• ClassiCube with its alternative chunk drawing (neighbouring faces in one draw): 50.9 fps against 48.4 (+5%). The staging pool: same fps, CPU -4%.
• BananaBread: as built 25.0 fps steady and 30.3 smooth. With the query wait capped at 200: 45.6 and 50.0, 1% low 4.9 to 16.9. With the water's occlusion queries lagged a frame: 39.4 and 43.5. Single runs, repeat pending.
• X-Moto with its streaming draw path: 163.1 fps against 160.4, longest frame 146 against 404 ms.

• X-Moto: GL calls per frame from 18,500 to 165 and draws from 1,960 to 40 (counted on the PC). Credits replay from 44.5 to 166.5 fps (HUD median), against the old drawing on the same boot. The picture was identical on the webcam.
• Extreme Tux Racer: calls from 19,400 to 850 and draws from 697 to 72. Race replay from 52 to 59 fps, against the old drawing.

Same boot as the Mesa ps3.299 batch, with Mesa ps3.282 reinstalled. Two runs each: X-Moto 47.0 fps, ClassiCube 46.9.

• Clean runs only, two per game, watched by a webcam script with a single SSH connection.
• Armagetron: 61.5 fps (50 on ps3.282).
• OpenArena (compressed textures): 52.4 (51.3).
• ClassiCube: 46.3, against 46.9 on ps3.282 on the same boot: noise.
• X-Moto: 44.5, against 47.0 on ps3.282 on the same boot: a real -5%. Turning off adaptive submission (45.5) or the index change (45.0) does not restore it. Fragment constants from VRAM (46) and the late index upload (46) each win back about a frame: 0031 and 0028 cost about one frame each.
• 0031 checked on the webcam with OpenArena's OpenGL 2 renderer: right picture, no GPU hang. The driver tests pass.
• Earlier runs that day, made with an old webcam watcher that logged in over SSH every 5 s, were slowed and are left out.

• Mesa ps3.282. Two runs as built and two with a submission every 100 draws, per game, interleaved.
• OpenArena (compressed textures): 52.2 and 50.4 fps as built, 52.2 and 53.9 with the setting (+3%). CPU 36-38 s in all. Longest frame 892-935 ms as built, 954-1216 ms with it.
• X-Moto (HUD): 47 and 48 as built, 42 and 44 with it (-9%). CPU 88-90 s in all. Underruns 22-43 with it, 22-29 without.
• ClassiCube fly-through (own counter): 48.1 and 48.5 as built, 48.8 and 49.0 with it (about +1%, neutral), but 59-60 s of CPU against 54.6 s (+9%).
• With the Armagetron batch: patch 0019 cost Armagetron its CPU/GPU overlap, and relocations or a submission every 100 draws get it back. But the fixed setting does not suit every game.
• Spread between two runs of the same variant: 1-2 fps.

• The patches: no relocations, the texture cache invalidated only after texture changes, no duplicate vertex-format writes, batched vertex program constants. One run per game.
• Against ps3.246: OpenArena with compressed textures 44.2 to 54.4 fps (+23%), Yamagi 51.4 to 63.9 (+24%), X-Moto 39 to 47 (+21%), Extreme Tux Racer 46 to 53 (+15%), dsda-doom software 33 to 38 with the demo now finishing (+15%), ClassiCube 47.6 to 50.1 (+5%).
• Neverball 78.2 to 71.5 (noise), QuakeSpasm 70.5 to 66.3 (repeated in the next batch), Luanti 53 to 53.
• Armagetron dropped from 60 to 51 (driver frame counter).
• BananaBread reads 28 to 8 on the counter, but it was memory-stalled (13 MB free, killed at the cap): not a driver number, and the cause is uncertain.
• The kernel's command validator rejected nothing.
• Single runs.

• One run per game. Frame rates by the game's own counter, or the driver's frame counter where marked:
• Armagetron 60 (counter), ClassiCube 47.6, dsda-doom software 33 (counter, demo unfinished), Extreme Tux Racer 46 (counter), Luanti 53 (counter), Neverball 78.2.
• OpenArena with compressed textures 44.2 (longest frame 2.1 s), QuakeSpasm 70.5, BananaBread with CPU skinning 28 (counter), X-Moto 39 (counter), Yamagi Quake II 51.4.
• Pictures right. Sound right except dsda-doom (1161 underruns, MIDI music), BananaBread (176) and OpenTTD (1429, choppy).
• OpenTTD used 55.5 s of CPU and has no frame rate (plain X11 path).
• Single runs: differences of a few fps are within the run-to-run spread.

• Mesa ps3.246: no fence reference work when the fence is unchanged, one fence read per validate, no duplicate references. Same command stream.
• Texture upload, format, mipmap and readback tests all pass.
• X-Moto 37 fps on the driver's frame counter (35 on ps3.223); underruns 208 down to 126.
• ClassiCube demo 44.9 fps (43.2 on ps3.225).
• OpenTTD with libsdl3 +ps3.242: colours right (the user checked), but 2 fps on the counter and 937 underruns, because the framebuffer was converted on the CPU twice per frame. Killed at the 60 s cap.
• Single runs.

• Debian X-Moto 0.6.3, single run.
• 35.04 fps by the game's own counter (5075 frames in 144.83 s).
• CPU-bound: 165 s of CPU in a 167 s run.
• 196 underruns.
• Picture right; the effects play, but the music masks the engine sound.